Three-body recombination in cold helium-helium-alkali-metal-atom collisions

Three-body recombination in helium-helium-alkali-metal collisions at cold temperatures is studied using the adiabatic hyperspherical representation. The rates for the three-body recombination processes He-4+He-4+X -> He-4+(HeX)-He-4 and He-4+He-4+X -> He-4(2)+X, with X=Li-7, Na-23, K-39, Rb-85, and Cs-133, are calculated at nonzero collision energies by including not only zero total angular momentum, J=0, states but also J>0 states. The three-body recombination rates show a relatively weak dependence on the alkali-metal species, differing from each other only by about one order of magnitude, except for the He-4-He-4-Na-23 system.